2021 FORD F650/750 fuel pressure

Your vehicle may be equipped with a cold
weather starting strategy that prevents
severe engine damage by assisting in
engine lubrication warm-up. In extremely
cold ambient temperatures, this strategy
activates and prevents the accelerator
pedal use for 30 seconds after starting
your vehicle. A message appears in the
information display as your vehicle warms
up. By not allowing the accelerator pedal
use, the engine oil can properly lubricate
the bearings preventing engine damage
due to lack of proper lubrication. After the
30-second warm-up period, the
accelerator pedal is operational again and
a message appears informing you that your
vehicle is ok to drive.
When starting the engine in extremely cold
temperatures, for example -15°F (-26°C),
we recommend you allow the engine to
idle for several minutes before driving your
vehicle. Illuminates when you switch the
ignition on as part of the
pre-starting system.
1. Turn the key to the on position without
turning the key to the start position. Do
not start the engine until the wait to
start indicator turns off.
2. When the wait to start indicator turns off, turn the key to the start position
and release the key as soon as the
engine starts. After starting the engine,
the glow plugs may remain on for a
period. If you do not start the engine
before the glow plug activation time
ends, you need to reset the glow plugs
by turning the key to the off position.
3. After the engine starts, allow it to idle for about 15 seconds. This is to protect
the engine. Do not increase engine
speed until the oil pressure gauge
indicates normal pressure. SWITCHING OFF THE ENGINE
Allow the engine to idle for three to five
minutes before shutting it down. The larger
the engine, the greater the need is for this
idling period.
Note:
Try to limit engine idle to 10 minutes.
Excessive idling reduces fuel economy.
ENGINE IDLE SHUTDOWN
(IF
EQUIPPED) WARNING:
In the event of engine
shutdown, make sure your vehicle is
safely off the road and the problem is
resolved before returning to the road.
Failure to do so may result in a crash,
serious injury or death.
This feature automatically shuts down the
engine when it has been idling in park (P)
or neutral (N) for an extended period,
depending on the setting.
When the engine idle shutdown process
has started:
• A chime sounds and a message
appears in the information display
showing a timer counting down from
30 seconds.
• You can reset the timer by pressing the
brake pedal, accelerator pedal, or by
shifting into another gear.
• If you do not intervene within 30
seconds, the engine shuts down and a
message appears in the information
display alerting you that the engine has
shut down.
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SAFETY PRECAUTIONS
WARNING: Do not overfill the fuel
tank. The pressure in an overfilled tank
may cause leakage and lead to fuel spray
and fire. WARNING:
The fuel system may
be under pressure. If you hear a hissing
sound near the fuel filler inlet, do not
refuel until the sound stops. Otherwise,
fuel may spray out, which could cause
serious personal injury. WARNING: Fuels can cause serious
injury or death if misused or mishandled. WARNING:
Gasoline may contain
benzene, which is a cancer-causing
agent. WARNING: When refueling always
shut the engine off and never allow
sparks or open flames near the fuel tank
filler valve. Never smoke or use a cell
phone while refueling. Fuel vapor is
extremely hazardous under certain
conditions. Avoid inhaling excess fumes. WARNING:
Flow of fuel through a
fuel pump nozzle can produce static
electricity. This can cause a fire if you are
filling an ungrounded fuel container. WARNING: Stop refueling after the
fuel pump nozzle automatically shuts
off for the second time. Failure to follow
this will fill the expansion space in the
fuel tank and could lead to fuel
overflowing. Observe the following guidelines when
handling automotive fuel:
•
Extinguish all smoking materials and
any open flames before refueling your
vehicle.
• Automotive fuels can be harmful or
fatal if swallowed. Fuel such as
gasoline is highly toxic and if
swallowed can cause death or
permanent injury. If swallowed, call a
physician immediately, even if no
symptoms are immediately apparent.
The toxic effects of fuel may not be
visible for hours.
• Avoid inhaling fuel vapors. Inhaling too
much fuel vapor of any kind can lead
to eye and respiratory tract irritation.
In severe cases, excessive or prolonged
breathing of fuel vapor can cause
serious illness and permanent injury.
• Avoid getting fuel liquid in your eyes. If
you splash fuel in your eyes, remove
contact lenses (if worn), flush with
water for 15 minutes and seek medical
attention. Failure to seek proper
medical attention could lead to
permanent injury.
• Fuels can also be harmful if absorbed
through the skin. If you splash fuel on
your skin, clothing or both, promptly
remove contaminated clothing and
wash your skin thoroughly with soap
and water. Repeated or prolonged skin
contact with fuel liquid or vapor causes
skin irritation.
• Be particularly careful if you are taking
“Antabuse ” or other forms of disulfiram
for the treatment of alcoholism.
Breathing gasoline vapors, or skin
contact could cause an adverse
reaction. In sensitive individuals, serious
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personal injury or sickness may result.
If you splash fuel on your skin, promptly
wash your skin thoroughly with soap
and water. Consult a physician
immediately if you experience an
adverse reaction.
Low Fuel Pressure (If Equipped)
Diesel engine vehicles have a low fuel
pressure detection system.
The following are possible causes for a low
fuel pressure warning message to appear
in the information display:
• Cold start or during cold operation
below
32°F (0°C). If the low fuel
pressure message appears during a
cold start or up to 10 minutes after the
initial cold start, monitor the
information display. If the low fuel
pressure message disappears and does
not re-appear after the engine has fully
warmed up, waxed or gelled fuel is
what most likely caused the message.
Do not use alcohol based additives to
correct fuel gelling. This may result in
damage to the fuel injectors and
systems. Use an anti-gel additive. See
Capacities and Specifications (page
288
).
Note: The vehicle Warranty may be void if
you use additives that do not meet or
exceed Ford specifications. If the low fuel
pressure message persistently appears after
re-fueling and then disappears when the
engine has fully warmed up, consider using
different fuel sources. •
Low fuel operation: If the low fuel
pressure message appears when your
vehicle is warm and during low fuel
tank level operation (near empty),
refuel your vehicle. If the message
reappears after fueling, see below. If
the message does not come back, the
low fuel pressure condition was due to
low fuel levels in the fuel tank.
• Normal operation: If the low fuel
pressure message appears during
normal operation when the engine is
fully warm, and fuel level is not low,
you must change the fuel filters
regardless of the maintenance
schedule interval.
• If replacement of the fuel filter does
not remedy the low fuel pressure
message during normal operation as
defined above, take the vehicle to an
authorized dealer.
FUEL QUALITY - DIESEL
Fuel Requirements - Choosing The
Right Fuel: Vehicles Operated
Where Ultra Low Sulfur Diesel Fuel
Is Required (United
States/Canada/Puerto Rico/U.S.
Virgin Islands And Other Locales)
Use Ultra-Low Sulfur Diesel fuel, also
known as ULSD, designated as number 1-D
or 2-D with a maximum of 15 ppm sulfur in
your diesel vehicle. You can operate your
vehicle on diesel fuels containing up to
20% biodiesel, also known as B20. These
fuels should meet the ASTM D975 diesel
or the ASTM D7467 B6-B20 biodiesel
industry specifications. Outside of North
America, use fuels meeting EN590 or
equivalent local market standard.
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To help achieve acceptable engine
performance and durability when using
biodiesel in your vehicle:
•
Confirm the biodiesel content of the
fuel to be 20% biodiesel or less, also
known as B20.
• Only use biodiesel fuel of good quality
that complies with industry standards.
• Follow the recommended service
maintenance intervals. See
Scheduled Maintenance (page 319).
• Do not store biodiesel fuel in the fuel
tank for more than 1 month.
• Consider changing brands or reducing
biodiesel content if you have cold
temperature fuel gelling issues or a
frequent LOW FUEL PRESSURE
message appearing.
Note: Do not use home heating oil,
agricultural fuel, raw fats and oils, waste
cooking greases, biodiesel fuels greater than
20% or any diesel fuel not intended for
highway use. Red dye is used to identify
fuels intended for agricultural and
non-highway use. Damage to the fuel
injection system, engine and exhaust
catalyst can occur if an improper fuel is
used.
Use of biodiesel in concentrations greater
than 20% could cause damage to your
vehicle, including engine and/or exhaust
catalyst and particulate filter failures.
Concentrations greater than 20% can also
cause fuel filter restrictions that could
result in a lack of power or damage to fuel
system components, including fuel pump
and fuel injector failures.
SAE 5W-40 or SAE 15W-40 oil is
recommended for fuels with greater than
5% biodiesel, also known as B5. Follow
the recommended oil change intervals and
other maintenance when operating on
biodiesel. See
Special Operating
Conditions Scheduled Maintenance
(page
329). Look for a label on the fuel pump to
confirm the amount of biodiesel contained
in a diesel fuel. Biodiesel content is often
indicated with the letter B followed by the
percent of biodiesel in the fuel. For
example, B20 indicates a fuel containing
20% biodiesel. Ask the service station
attendant to confirm the biodiesel content
of a diesel fuel if you do not see a label on
the fuel pump.
Note:
Biodiesel fuels degrade more easily
than diesel fuels not containing biodiesel.
Degraded or oxidized biodiesel can damage
fuel system seals and plastics and corrode
steel parts. If you plan to park or store your
vehicle for more than 1 month, empty your
vehicle fuel tank of biodiesel fuel. Fill the
tank with a pure petroleum-based diesel
fuel and run your vehicle for a minimum of
30 minutes.
During cold weather, if you have problems
operating on biodiesel, you may need to
use a diesel fuel with lower biodiesel
content, try another brand, or discontinue
the use of biodiesel.
Diesel Fuel Additives
It should not be necessary to add any
aftermarket additives to your fuel if you
use a high quality diesel fuel that conforms
to ASTM industry specifications.
Aftermarket additives can damage the fuel
injector system or engine.
Use Motorcraft® cetane booster or an
equivalent cetane booster additive if you
suspect fuel has low cetane. Use
Motorcraft® anti-gel & performance
improver or an equivalent additive if there
is fuel gelling.
Do not use alcohol-based additives to
improve cetane quality, to prevent fuel
gelling or any other use. The use of alcohol
additives may result in damage to the fuel
injectors and system. See Capacities and
Specifications (page 288).
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Fuel Filler Cap
WARNING: The fuel system may
be under pressure. If you hear a hissing
sound near the fuel filler inlet, do not
refuel until the sound stops. Otherwise,
fuel may spray out, which could cause
serious personal injury.
Note: If you do not use the correct fuel filler
cap, excessive pressure or vacuum in the
fuel tank may damage the fuel system or
cause the fuel cap to disengage in a crash.
The fuel tank has a threaded fuel filler cap.
Note: If you must replace the fuel filler cap,
replace it with a fuel filler cap that is
designed for your vehicle. The vehicle
Warranty may be void for any damage to
the fuel tank or fuel system if the correct
genuine Ford, Motorcraft or other certified
fuel filler cap is not used.
When refueling the vehicle fuel tank do the
following.
1. When your vehicle has stopped, shift into neutral (N) or park (P).
2. Apply the parking brake and switch the
ignition off.
3. Turn the fuel filler cap counterclockwise and remove it.
4. Refuel your vehicle as required.
5. Replace the fuel filler cap, turn it clockwise until you feel a strong
resistance.
Fuel Fill Rate
Your vehicle has a fuel fill pipe that is able
to accept fuel up to
20 gal (75 L) per
minute from a fuel-dispensing nozzle.
Pumping fuel at greater flow rates may
result in premature nozzle shut-off or spit
back. Truck stops have fuel pumps and nozzles
designed for larger, heavy-duty trucks. If
you are refueling your vehicle at a truck
stop and the nozzle shuts off repeatedly,
wait 5-10 seconds, then use a slower fill
rate.
REFUELING - GASOLINE
WARNING:
Fuel vapor burns
violently and a fuel fire can cause severe
injuries. WARNING: Read and follow all the
instructions on the pump island. WARNING: When refueling always
shut the engine off and never allow
sparks or open flames near the fuel tank
filler valve. Never smoke or use a cell
phone while refueling. Fuel vapor is
extremely hazardous under certain
conditions. Avoid inhaling excess fumes. WARNING:
Stay outside your
vehicle and do not leave the fuel pump
unattended when refueling your vehicle. WARNING:
Keep children away
from the fuel pump; never let children
pump fuel. WARNING:
Wait at least 10
seconds before removing the fuel pump
nozzle to allow any residual fuel to drain
into the fuel tank. WARNING: Stop refueling after the
fuel pump nozzle automatically shuts
off for the second time. Failure to follow
this will fill the expansion space in the
fuel tank and could lead to fuel
overflowing.
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WARNING: Do not remove the fuel
pump nozzle from its fully inserted
position when refueling.
Use the following guidelines to avoid
electrostatic charge build-up when filling
an ungrounded fuel container:
• Place approved fuel container on the
ground.
• Do not fill a fuel container while it is in
the vehicle (including the cargo area).
• Keep the fuel pump nozzle in contact
with the fuel container while filling.
• Do not use a device that would hold
the fuel pump handle in the fill position.
Fuel Filler Cap WARNING: The fuel system may
be under pressure. If you hear a hissing
sound near the fuel filler inlet, do not
refuel until the sound stops. Otherwise,
fuel may spray out, which could cause
serious personal injury. WARNING:
If you do not use the
correct fuel filler cap, excessive pressure
or vacuum in the fuel tank may damage
the fuel system or cause the fuel cap to
disengage in a crash. Failure to follow
this warning could result in serious
personal injury.
The fuel tank has a threaded fuel filler cap.
Note: If you must replace the fuel filler cap,
replace it with a fuel filler cap that is
designed for your vehicle. The vehicle
Warranty may be void for any damage to
the fuel tank or fuel system if the correct
genuine Ford, Motorcraft or other certified
fuel filler cap is not used.
When refueling the vehicle fuel tank do the
following. 1. When your vehicle has stopped, shift
into neutral (N) or park (P).
2. Apply the parking brake and switch the
ignition off.
3. Turn the fuel filler cap counterclockwise and remove it.
4. Refuel your vehicle as required.
5. Replace the fuel filler cap, turn it clockwise until you feel a strong
resistance.
If the fuel cap warning lamp or a warning
message appears in the instrument cluster,
you may not have installed the fuel filler
cap correctly.
If the fuel cap warning lamp remains on,
at the next opportunity, safely pull off of
the road, remove the fuel filler cap, align
the cap properly and reinstall it. The check
fuel cap warning lamp or warning message
may not reset immediately. It may take
several driving cycles for the indicators to
turn off. A driving cycle consists of an
engine start-up (after four or more hours
with the engine off) followed by normal
city and highway driving.
FUEL CONSUMPTION
The advertised capacity is the maximum
amount of fuel that you can add to the fuel
tank after running out of fuel. Included in
the advertised capacity is an empty
reserve. The empty reserve is an
unspecified amount of fuel that remains
in the fuel tank when the fuel gauge
indicates empty.
Note: The amount of fuel in the empty
reserve varies and should not be relied upon
to increase driving range.
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Push the palm release lever (A) on the
parking brake handle (B) and push down
as far as possible to release the brake.
Driving with the parking brake on causes
the brakes to wear out quickly and reduces
fuel economy.
We recommend you not use the parking
brake to stop a moving vehicle. However,
if the normal brakes fail, you can use the
parking brake to stop your vehicle in an
emergency. Since the parking brake only
applies retardation to the rear wheels, the
vehicle's stopping distance increases
greatly and the handling of your vehicle is
adversely affected.
Releasing Spring Manually
WARNING: Do not attempt to
disassemble the parking brake air
chamber under any circumstances as
this may cause serious injury. WARNING:
Block the wheels to
help prevent the vehicle from moving. WARNING:
Unexpected and
possibly sudden vehicle movement may
occur if you do not take these
precautions.
If you release hydraulic pressure from the
spring brake chamber, the power spring
applies the brake. If the hydraulic pressure
can be re-established, you must release
the spring brake in order to move your
vehicle. Air Brakes
(If Equipped) WARNING:
This control is for
parking only. Do not leave the vehicle
unattended after setting the parking
brake without placing the transmission
in park (P). We recommend using wheel
chocks for hilly or off-road
circumstances.
If the service brakes fail to operate while
your vehicle is moving, you can make an
emergency stop with the parking brake.
Since the parking brake only applies
stopping power to the rear wheels, your
vehicle ’s stopping distance greatly
increases and the handling of your vehicle
is adversely affected. Make repairs
immediately to an inoperative air brake
system circuit. Pull the yellow, dash-mounted parking
brake knob to apply the parking brake.
The parking brake light
illuminates and remains
illuminated (when you switch
the ignition to the on position) until you
release the parking brake.
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ECONOMICAL DRIVING
Your fuel economy is affected by several
things, such as how you drive, the
conditions you drive under, and how you
maintain your vehicle.
You may improve your fuel economy by
keeping these things in mind:
•
Accelerate and slow down in a smooth,
moderate fashion.
• Drive at steady speeds without
stopping.
• Anticipate stops; slowing down may
eliminate the need to stop.
• Close the windows for high-speed
driving.
• Drive at reasonable speeds. Traveling
at 55 mph (90 km/h) uses 15% less
fuel than traveling at 65 mph
(105 km/h).
• Keep the tires properly inflated and use
only the recommended size.
• Use the recommended engine oil.
• Perform all regularly scheduled
maintenance.
Avoid these actions; they reduce your fuel
economy:
• Sudden accelerations or hard
accelerations.
• Warm up your vehicle on cold
mornings.
• Use the air conditioner.
• Use the speed control in hilly terrain.
• Rest your foot on the brake pedal while
driving.
• Carry unnecessary weight.
Approximately 1 mpg [0.4 km/L] is lost
for every
400 lb (180 kg) of weight
carried.
• Driving with the wheels out of
alignment. Conditions
•
Adding certain accessories to your
vehicle may reduce fuel economy. For
example bug deflectors, rollbars, light
bars, running boards, ski racks or
luggage racks.
• Using fuel blended with alcohol may
lower fuel economy.
• Fuel economy may decrease with lower
temperatures during the first
5–10 mi
(12 –16 km) of driving.
• Driving on flat terrain offers improved
fuel economy as compared to driving
on hilly terrain.
• Transmissions give their best fuel
economy when operated in the top
cruise gear and with steady pressure
on the gas pedal.
COLD WEATHER
PRECAUTIONS
Note: Idling in cold weather does not heat
the engine to its normal operating
temperature. Long periods of idling,
especially in cold weather, can cause a
buildup of deposits which can cause engine
damage.
Changing to a lighter grade engine oil also
makes starting easier under these
conditions. Refer to Engine oil
specifications. See
Capacities and
Specifications (page 288).
Diesel fuel is adjusted seasonally for cold
temperatures. Diesel fuel which has not
been properly formulated for the ambient
conditions may gel which can clog the fuel
filters. One indication that the fuel filter(s)
may be clogged is if the engine starts, stalls
after a short time, and then does not
restart. If you have been using biodiesel,
you may need to use a fuel with lower
biodiesel content, try another brand, or
discontinue using biodiesel. Do not use
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